Ranging system and ranging method

Abstract

The present invention relates to ranging system and ranging method, the ranging system includes: a ranging apparatus and a terminal device ( 3 ), wherein the ranging apparatus includes: a measuring wheel ( 1 ), a rotating shaft disposed on the measuring wheel ( 1 ), and an electronic counter ( 2 ) connected to the rotating shaft and used to obtain distance information of the measuring wheel; wherein the ranging apparatus or the terminal device ( 3 ) further includes an angle sensor; communication module being arranged on the terminal device ( 3 ) and the ranging apparatus, respectively; the terminal device ( 3 ) including data processing module configured to generate a traveling trajectory diagram of the measuring wheel, in real time, based on the distance information from the electronic counter ( 2 ) and the angle information from the angle sensor. Thereby, a traveling trajectory diagram can also be generated in real time on the basis that a ranging function is achieved, such that working efficiency is effectively improved. A function of marking lines according to a predesigned diagram in a construction site can also be achieved by cooperating with a marker ( 4 ), and the present invention has a simple structure and is lightweight and flexible.

What is claimed is: 
     
       1. A ranging system, comprising:
 a terminal device; 
 a ranging apparatus, the ranging apparatus comprises including:
 a measuring wheel, 
 a rotating shaft disposed on the measuring wheel, and 
 an electronic counter connected to the rotating shaft and configured to obtain distance information, in real time, of a route which the measuring wheel has already traveled; and 
 
 an angle sensor configured to obtain angle information, in real time, when the measuring wheel is traveling; 
 wherein: 
 the terminal device and the ranging apparatus are configured to transmit data between each other; 
 the terminal device is configured to generate a traveling trajectory diagram of the measuring wheel, in real time, based on the distance information from the electronic counter and the angle information from the angle sensor; and 
 the terminal device is further configured to compare a current traveling trajectory of the measuring wheel, in real time, with a predesigned traveling trajectory diagram stored on the terminal device, and output deviation data in response to the current traveling trajectory of the measuring wheel deviating from the predesigned traveling trajectory diagram. 
 
     
     
       2. The ranging system according to  claim 1 , wherein:
 the terminal device comprises a storage device configured to store the predesigned traveling trajectory diagram; and 
 the terminal device is further configured to perform direction and/or distance prompt based on the deviation data to indicate a user to correct the current traveling trajectory of the measuring wheel. 
 
     
     
       3. The ranging system according to  claim 1 , wherein:
 the terminal device further comprises a storage device configured to store a predesigned traveling trajectory diagram; and 
 the ranging apparatus further comprises a marker configured to mark on the route of the measuring wheel according to a user instruction or according to a preconfigured rule. 
 
     
     
       4. The ranging system according to  claim 1 , wherein the angle sensor is an electronic compass disposed in the ranging apparatus and configured to communicate with the terminal device. 
     
     
       5. The ranging system according to  claim 1 , wherein the angle sensor is a gyroscope disposed in the terminal device. 
     
     
       6. The ranging system according to  claim 1 , wherein the ranging apparatus further comprises a holder for fixing the terminal device. 
     
     
       7. The ranging system according to  claim 1 , wherein:
 the terminal device further comprises a camera configured to obtain, in real time, a scene image in a traveling direction of the measuring wheel; and 
 the terminal device is further configured to display the scene image and provide direction and/or distance prompt on the scene image. 
 
     
     
       8. The ranging system according to  claim 1 , wherein the terminal device and the ranging apparatus are configured to transmit data between each other through one of:
 a wireless communication module using a Bluetooth, a WIFI, a Zigbee or an RF communication protocol; or 
 a wired communication channel using an RS232, an RS485, an I2C, an SPI or a CAN protocol. 
 
     
     
       9. The ranging system according to  claim 1 , wherein:
 the ranging system further comprises a cloud server communicating with the terminal device, the cloud server being configured to store and share data sent by the terminal device; 
 the data sent by the terminal device includes at least one of: the distance information from the electronic counter, the angle information from the angle sensor, and a first traveling trajectory diagram; and 
 the terminal device is configured to retrieve the predesigned traveling trajectory diagram from the cloud server. 
 
     
     
       10. The ranging system according to  claim 1 , wherein the terminal device is further configured to: in response to the traveling trajectory diagram containing a closed trajectory, obtain an area of the closed trajectory by meshing the closed trajectory and calculating the area of meshes contained by the closed trajectory. 
     
     
       11. The ranging system according to  claim 1 , wherein the terminal device is one of: a smart cellphone, a computer, or a handheld equipment. 
     
     
       12. A ranging method, comprising:
 obtaining by an electronic counter, in real time, distance information which a measuring wheel of a ranging device has already traveled; 
 obtaining by an angle sensor, in real time, angle information of the measuring wheel, when the measuring wheel is traveling; 
 transmitting the distance information and the angle information to a terminal device; 
 processing the distance information and the angle information into trajectory data by the terminal device; 
 generating by the terminal device, in real time, a traveling trajectory diagram of the measuring wheel according to the trajectory data; 
 comparing a current traveling trajectory of the measuring wheel, in real time, with a predesigned traveling trajectory diagram stored on the terminal device; and 
 outputting deviation data in response to the current traveling trajectory of the measuring wheel deviating from the predesigned traveling trajectory diagram. 
 
     
     
       13. The ranging method according to  claim 12 , further comprising:
 storing the predesigned traveling trajectory diagram in the terminal device; and 
 prompting direction and/or distance based on the deviation data to indicate the user to correct the current traveling route of the measuring wheel. 
 
     
     
       14. The ranging method according to  claim 12 , further comprising:
 marking, by a maker disposed in the ranging device, on a traveling route of the measuring wheel according to a user instruction or according to a preconfigured rule. 
 
     
     
       15. The ranging method according to  claim 13 , further comprising:
 obtaining, in real time, a scene image in a traveling direction of the measuring wheel; 
 displaying the scene image on the terminal device; and 
 providing direction and/or distance prompt on the scene image. 
 
     
     
       16. The ranging method according to  claim 12 , further comprising:
 transmitting data to a cloud server, the data including at least one of: the distance information from the electronic counter, the angle information from the angle sensor, and a first traveling trajectory diagram from the terminal device; and 
 retrieving, by the terminal device, the predesigned traveling trajectory diagram from the cloud server. 
 
     
     
       17. The ranging method according to  claim 12 , further comprising:
 in response to the traveling trajectory diagram containing a closed trajectory, obtaining an area of the closed trajectory by meshing the closed trajectory and calculating the area of meshes contained by the closed trajectory.